.des-container {
  padding: 20px 10px 0;
  border-bottom: 1px solid #ccc;
}
.des-container .row {
  display: flex;
}
.des-container .row .col-xs-4 {
  display: flex;
  justify-content: center;
  align-items: center;
}
.des-container li {
  height: 3rem;
  line-height: 3rem;
}
#main, #chart {
  min-height: 35vh;
  padding: 1rem;
}
/* 手机横屏状态 */
@media screen and (orientation: landscape){
  #main, #chart {
    min-height: 80vh;
    height: 80vh;
  }
}
.main, .chart {
  position: relative;
  padding-top: 2rem;
}
.main .btn-group-data, .chart .btn-group-data {
  position: absolute;
  display: block;
  top: .1rem;
  right: 1rem;
}
.main .btn-group-data-group, .chart .btn-group-data-group {
  position: absolute;
  left: 1rem;
  top: .1rem;
}
.main .btn-data, .chart .btn-data {
  display: block;
}
.timer {
    position: absolute;
    top: 1rem;
    left: 50%;
    transform: translate(-50%, 0)
}